Home / 1,191,129.26-1,643,782.68-647,300.07

Finding the Fourth Proportional to 1,191,129.26, 1,643,782.68 and 647,300.07

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Solution

The fourth proportional to 1,191,129.26, 1,643,782.68 and 647,300.07 is: 893,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,129.26 : 1,643,782.68 = 647,300.07 : x
  2. Step 2: Convert to fraction form
    1,191,129.26/1,643,782.68 = 647,300.07/x
  3. Step 3: Cross multiply
    1,191,129.26x = 1,643,782.68 × 647,300.07
  4. Step 4: Simplify right side
    1,191,129.26x = 1,064,020,643,828.79
  5. Step 5: Solve for x
    x = 1,064,020,643,828.79/1,191,129.26
  6. Step 6: Final answer
    x = 893,287.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.